Ppg Industries Ohio, Inc.

James C Serene

Craig A Wilson

Egle Puodziukynaite

David A Stone

Shanti Swarup

Paul H Lamers

Steven V Barancyk

Yves Le Disert

Marissa E McGovern

Ian Michael Jones

Lee Brent Steely

The present invention is directed to an electrodepositable coating composition comprising an acrylic polymer comprising greater than 60% by weight of constitutional units comprising the residue of a hydroxyl-functional (meth)acrylate monomer and/or a hydroxyl-functional (meth)acrylamide monomer, based on the total weight of the acrylic polymer; and an ionic salt group-containing film-forming polymer different from the acrylic polymer. Also disclosed are coatings, coated substrates, and methods of coating a substrate.

Electrodepositable coating compositions

A coating composition includes: (a) an acid functional polyol polymer having an acid value of greater than 9 mg KOH/g and less than 60 mg KOH/g, and a hydroxyl value of from 100 to 300 mg KOH/g; (b) a non-aminoplast derived crosslinker reactive with the acid functional polyol polymer; and (c) a non-aqueous liquid medium. Further, an equivalent ratio of functional groups on the crosslinker reactive with hydroxyl functional groups to hydroxyl functional groups on the acid functional polyol polymer is within a range of from 0.5 to 1.5. The coating composition is substantially free of an external catalyst. The coating composition cures at a temperature of less than 80° C.

Coating compositions containing acid functional polyol polymers and coatings formed therefrom

Electrodepositable coating compositions containing 1,1-di-activated vinyl compounds are described. The coating compositions produce cured coating layers that exhibit resistance to cratering. The coating compositions can be used in electrodepositable coating composition formulations.

Electrodepositable coating compositions containing 1,1-di-activated vinyl compounds

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Lower Burrell, PA, United States of America

James C Serene